<!DOCTYPE html>
<html>
<svg  width="200" height="200">
  <defs>
    <marker id="markerCircle" markerWidth="8" markerHeight="8" refX="5" refY="5">
      <circle cx="5" cy="5" r="2" style="stroke: none; fill:#000000;"/>
    </marker>
  </defs>
  <path id="drawPath" d="M10,10 L60,10 L110,10" style="stroke: #6666ff; stroke-width: 1px; fill: none; marker-start: url(#markerCircle); marker-mid: url(#markerCircle); marker-end: url(#markerCircle);"/>
</svg>
</html>
